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US 2014/0368934 A1Published application
Lens driving apparatus
AssigneeLG Innotek Co., Ltd.
InventorJi Hoon KIM
Life of this patent
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Abstract
Disclosed is a lens driving apparatus. The lens driving apparatus includes a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin.
Claims35
A lens driving apparatus comprising:
- a base;
- a yoke disposed on the base, the yoke including an upper surface formed with a hole and a side surface to make an inner space surrounded by the upper surface and the side surface;
- a bobbin disposed in the yoke;
- magnets coupled to the yoke and each having a prism shape;
- a coil disposed at an outer portion of the bobbin while facing the magnets and having a polygonal shape;
- and
- springs coupled to the bobbin to provide restoration force to the bobbin,
- wherein the springs comprise an upper spring coupled to an upper portion of the bobbin and a tower spring coupled to a lower portion of the bobbin, and
- wherein an intermediate portion of the upper spring connecting an inner side of the upper spring to an outer side of the upper spring is separated from an inner surface of the upper surface of the yoke.
6 more elements
A lens driving apparatus comprising:
- a base;
- a yoke disposed on the base, the yoke including an upper surface formed with a hole and a side surface to make an inner space surrounded by the upper surface and the side surface;
- a bobbin disposed in the yoke;
- magnets coupled to the yoke and each having a prism shape;
- a coil disposed at an outer portion of the bobbin while facing the magnets;
- and
- an upper spring coupled to the bobbin to provide restoration force to the bobbin,
- wherein the upper spring comprise an inner side, an outer side, and an intermediate portion connecting the inner side to the outer side, and
- wherein a part of the intermediate portion of the upper spring is separated from an inner surface of the upper surface of the yoke.
6 more elements
A camera comprising:
- a base;
- a metal yoke disposed on the base, the metal yoke including an upper surface formed with a hole and a side surface to make an inner space surrounded by the upper surface and the side surface;
- a bobbin disposed in the metal yoke;
- magnets coupled to the metal yoke and each having a prism shape;
- a coil disposed at an outer portion of the bobbin while facing the magnets and having a polygonal shape;
- a lens coupled to the bobbin;
- and
- springs coupled to the bobbin to provide restoration force to the bobbin,
- wherein the springs comprise an upper spring coupled to an upper portion of the bobbin and a lower spring coupled to a lower portion of the bobbin,
- wherein the upper spring comprises an inner side, an outer side, and an intermediate portion connecting the inner side to the outer side, and
- wherein a part of the intermediate portion of the upper spring is separated from an inner surface of the upper surface of the metal yoke.
8 more elements
A lens driving apparatus comprising:
- a base;
- a metal yoke disposed on the base, the yoke including an upper surface formed with a hole and a closed side surface contacting the base to make an inner space surrounded by the upper surface and the closed side surface;
- a bobbin disposed in the metal yoke;
- magnets coupled to an inner surface of the metal yoke and each having a prism shape;
- a coil disposed at an outer portion of the bobbin while facing the magnets and having a polygonal shape;
- and
- springs coupled to the bobbin to provide restoration force to the bobbin,
- wherein the springs comprise an upper spring coupled to an upper portion of the bobbin and a lower spring coupled to a lower portion of the bobbin, and
- wherein a part of an intermediate portion of the upper spring connecting an inner side of the upper spring to an outer side of the upper spring is separated from an inner surface of the upper surface of the metal yoke.
6 more elements
Dependencies are inferred from the claim text.